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//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists for the convenience

// of other Qt classes.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#ifndef QAUDIOOUTPUT_MAC_P_H

#define QAUDIOOUTPUT_MAC_P_H

#include <CoreServices/CoreServices.h>

#include <CoreAudio/CoreAudio.h>

#include <AudioUnit/AudioUnit.h>

#include <AudioToolbox/AudioToolbox.h>

#include <QtCore/qobject.h>

#include <QtCore/qmutex.h>

#include <QtCore/qwaitcondition.h>

#include <QtCore/qtimer.h>

#include <QtCore/qatomic.h>

#include <qaudio.h>

#include <qaudioformat.h>

#include <qaudiosystem.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

class QIODevice;

namespace QtMultimediaKitInternal

{

class QAudioOutputBuffer;

}

class QAudioOutputPrivate : public QAbstractAudioOutput

{

    Q_OBJECT

public:

    bool            isOpen;

    int             internalBufferSize;

    int             periodSizeBytes;

    qint64          totalFrames;

    QAudioFormat    audioFormat;

    QIODevice*      audioIO;

    AudioDeviceID   audioDeviceId;

    AudioUnit       audioUnit;

    Float64         clockFrequency;

    UInt64          startTime;

    AudioStreamBasicDescription deviceFormat;

    AudioStreamBasicDescription streamFormat;

    QtMultimediaKitInternal::QAudioOutputBuffer*   audioBuffer;

    QAtomicInt      audioThreadState;

    QWaitCondition  threadFinished;

    QMutex          mutex;

    QTimer*         intervalTimer;

    QAudio::Error    errorCode;

    QAudio::State    stateCode;

    QAudioOutputPrivate(const QByteArray& device);

    ~QAudioOutputPrivate();

    bool open();

    void close();

    QAudioFormat format() const;

    void setFormat(const QAudioFormat& fmt);

    QIODevice* start();

    void start(QIODevice* device);

    void stop();

    void reset();

    void suspend();

    void resume();

    int bytesFree() const;

    int periodSize() const;

    void setBufferSize(int value);

    int bufferSize() const;

    void setNotifyInterval(int milliSeconds);

    int notifyInterval() const;

    qint64 processedUSecs() const;

    qint64 elapsedUSecs() const;

    QAudio::Error error() const;

    QAudio::State state() const;

    void audioThreadStart();

    void audioThreadStop();

    void audioThreadDrain();

    void audioDeviceStop();

    void audioDeviceIdle();

    void audioDeviceError();

    void startTimers();

    void stopTimers();

private slots:

    void deviceStopped();

    void inputReady();

private:

    enum { Running, Draining, Stopped };

    static OSStatus renderCallback(void* inRefCon,

                                    AudioUnitRenderActionFlags* ioActionFlags,

                                    const AudioTimeStamp* inTimeStamp,

                                    UInt32 inBusNumber,

                                    UInt32 inNumberFrames,

                                    AudioBufferList* ioData);

};

QT_END_NAMESPACE

QT_END_HEADER

#endif